SD Driver : FAT: FAT read failed (blocknr 8) in sd card error while removing sd card during writing

DISCUSSION MADHAV SINGHCHAUHAN 3 participants 4 messages Jul 8, 2010 – Jul 9, 2010 MMC, SD and SDIO

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MADHAV SINGHCHAUHAN

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2010-07-08 13:05 UTC #0 lore raw

Card removal not detected by driver?
You should see a line of log if card removal is detected:
card xxxx removed

Would you describe how do you detect card removal/insertion on your board?

Regards,
-Ethan

Quoted 59 lines · hardik patel

I have sd card on board ... During recording/writing SD card, remove SD card ... then i am getting endless error in dmesg as below :
end_request: I/O error, dev mmcblk0, sector 24
FAT: FAT read failed (blocknr 8)
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0 Block mmc_blk_issue_rq function call 346
end_request: I/O error, dev mmcblk0, sector 4
FAT: FAT read failed (blocknr 4)
MMC: killing requests for dead queue
end_request: I/O error, dev mmcblk0, sector 8
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
How to stop this message ... what is ideal situation when we remove card while writing ...... can u help me what to do ?
Quoted 4 lines
When we insert the card hot plug dameon start sending the request to block layer and kernel block layer start sending the request to card.But when you remove the card in between request queue is not flushed properly.. so you need to flush your request queue at appropriate time.Also please note that even that you flush your request queue at appropriate time some messages will come.
where is the problem here? sd host controler driver problem or block driver problem or file system problem
Note: I have formatted sd card with FAT32 file system .
With EXT3 File system :
Remove SD card while writing/recording we got error messages like below. but this is not endless. After some time it stops.
==============================
=============
end_request: I/O error, dev mmcblk0, sector 156536
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0
mmcblk0: error -110 requesting status
end_request: I/O error, dev mmcblk0, sector 4736 Aborting journal on device mmcblk0p1.
ext3_abort called.
EXT3-fs error (device mmcblk0p1): ext3_journal_start_sb: Detected aborted journal
Remounting filesystem read-only
end_request: I/O error, dev mmcblk0, sector 4448 journal commit I/O error
===========================================
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hardik patel

2010-07-08 18:08 UTC #1 lore raw

Hi Madhav,

thanks for your interest... I have card detect register so mmc_get_cd function i can check whether card is inserted or not ... so in sd host controller driver can detect that properly... but i think block driver does not detect that .... where i have to flush my request queue... i have gone through block.c and queue.c file which generate mmc_block.ko file but not sure where to modify... can any one guide me more

Quoted 81 lines · MADHAV SINGHCHAUHAN

Card removal not detected by driver?
You should see a line of log if card removal is detected:
card xxxx removed
Would you describe how do you detect card removal/insertion on your board?
Regards,
-Ethan
Quoted 50 lines · hardik patel
I have sd card on board ... During recording/writing SD card, remove SD card ... then i am getting endless error in dmesg as below :
end_request: I/O error, dev mmcblk0, sector 24
FAT: FAT read failed (blocknr 8)
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0 Block mmc_blk_issue_rq function call 346
end_request: I/O error, dev mmcblk0, sector 4
FAT: FAT read failed (blocknr 4)
MMC: killing requests for dead queue
end_request: I/O error, dev mmcblk0, sector 8
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
How to stop this message ... what is ideal situation when we remove card while writing ...... can u help me what to do ?
Quoted 4 lines
When we insert the card hot plug dameon start sending the request to block layer and kernel block layer start sending the request to card.But when you remove the card in between request queue is not flushed properly.. so you need to flush your request queue at appropriate time.Also please note that even that you flush your request queue at appropriate time some messages will come.
where is the problem here? sd host controler driver problem or block driver problem or file system problem
Note: I have formatted sd card with FAT32 file system .
With EXT3 File system :
Remove SD card while writing/recording we got error messages like below. but this is not endless. After some time it stops.
==============================
=============
end_request: I/O error, dev mmcblk0, sector 156536
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0
mmcblk0: error -110 requesting status
end_request: I/O error, dev mmcblk0, sector 4736 Aborting journal on device mmcblk0p1.
ext3_abort called.
EXT3-fs error (device mmcblk0p1): ext3_journal_start_sb: Detected aborted journal
Quoted 9 lines
Remounting filesystem read-only
end_request: I/O error, dev mmcblk0, sector 4448
journal commit I/O error
===========================================
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Signature · 5 lines

Regards,
Hardik

"If you are doing what you have always been doing then expect what you
have always been getting."

Madhav Chauhan

2010-07-09 03:50 UTC #2 lore raw

Quoted 8 lines · hardik patel

Hi Madhav,
thanks for your interest... I have card detect register so mmc_get_cd function i can check whether card is inserted or not ... so in sd host controller driver can detect that properly... but i think block driver does not detect that .... where i have to flush my request queue... i have gone through block.c and queue.c file which generate mmc_block.ko file but not sure where to modify... can any one guide me more

Which Kernel version you are using??

Quoted 99 lines

Quoted 69 lines · MADHAV SINGHCHAUHAN
Card removal not detected by driver?
You should see a line of log if card removal is detected:
card xxxx removed
Would you describe how do you detect card removal/insertion on your board?
Regards,
-Ethan
Quoted 50 lines · hardik patel
I have sd card on board ... During recording/writing SD card, remove SD card ... then i am getting endless error in dmesg as below :
end_request: I/O error, dev mmcblk0, sector 24
FAT: FAT read failed (blocknr 8)
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0 Block mmc_blk_issue_rq function call 346
end_request: I/O error, dev mmcblk0, sector 4
FAT: FAT read failed (blocknr 4)
MMC: killing requests for dead queue
end_request: I/O error, dev mmcblk0, sector 8
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
How to stop this message ... what is ideal situation when we remove card while writing ...... can u help me what to do ?
Quoted 4 lines
When we insert the card hot plug dameon start sending the request to block layer and kernel block layer start sending the request to card.But when you remove the card in between request queue is not flushed properly.. so you need to flush your request queue at appropriate time.Also please note that even that you flush your request queue at appropriate time some messages will come.
where is the problem here? sd host controler driver problem or block driver problem or file system problem
Note: I have formatted sd card with FAT32 file system .
With EXT3 File system :
Remove SD card while writing/recording we got error messages like below. but this is not endless. After some time it stops.
==============================
=============
end_request: I/O error, dev mmcblk0, sector 156536
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0
mmcblk0: error -110 requesting status
end_request: I/O error, dev mmcblk0, sector 4736 Aborting journal on device mmcblk0p1.
ext3_abort called.
EXT3-fs error (device mmcblk0p1): ext3_journal_start_sb: Detected aborted journal
Quoted 9 lines
Remounting filesystem read-only
end_request: I/O error, dev mmcblk0, sector 4448
journal commit I/O error
===========================================
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More majordomo info at ?http://vger.kernel.org/majordomo-info.html
Quoted 12 lines
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--
Regards,
Hardik
"If you are doing what you have always been doing then expect what you have always been getting."
--
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hardik patel

2010-07-09 04:41 UTC #3 lore raw

I am using 2.6.30 linux kernel version ...

Quoted 111 lines · Madhav Chauhan

Quoted 8 lines · hardik patel
Hi Madhav,
thanks for your interest... I have card detect register so mmc_get_cd function i can check whether card is inserted or not ... so in sd host controller driver can detect that properly... but i think block driver does not detect that .... where i have to flush my request queue... i have gone through block.c and queue.c file which generate mmc_block.ko file but not sure where to modify... can any one guide me more
Which Kernel version you are using??
Quoted 99 lines
Quoted 69 lines · MADHAV SINGHCHAUHAN
Card removal not detected by driver?
You should see a line of log if card removal is detected:
card xxxx removed
Would you describe how do you detect card removal/insertion on your board?
Regards,
-Ethan
Quoted 50 lines · hardik patel
I have sd card on board ... During recording/writing SD card, remove SD card ... then i am getting endless error in dmesg as below :
end_request: I/O error, dev mmcblk0, sector 24
FAT: FAT read failed (blocknr 8)
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0 Block mmc_blk_issue_rq function call 346
end_request: I/O error, dev mmcblk0, sector 4
FAT: FAT read failed (blocknr 4)
MMC: killing requests for dead queue
end_request: I/O error, dev mmcblk0, sector 8
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
FAT: FAT read failed (blocknr 4)
FAT: FAT read failed (blocknr 8)
How to stop this message ... what is ideal situation when we remove card while writing ...... can u help me what to do ?
Quoted 4 lines
When we insert the card hot plug dameon start sending the request to block layer and kernel block layer start sending the request to card.But when you remove the card in between request queue is not flushed properly.. so you need to flush your request queue at appropriate time.Also please note that even that you flush your request queue at appropriate time some messages will come.
where is the problem here? sd host controler driver problem or block driver problem or file system problem
Note: I have formatted sd card with FAT32 file system .
With EXT3 File system :
Remove SD card while writing/recording we got error messages like below. but this is not endless. After some time it stops.
==============================
=============
end_request: I/O error, dev mmcblk0, sector 156536
mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 sending read/write command, response 0x0, card status 0x0
mmcblk0: error -110 requesting status
end_request: I/O error, dev mmcblk0, sector 4736 Aborting journal on device mmcblk0p1.
ext3_abort called.
EXT3-fs error (device mmcblk0p1): ext3_journal_start_sb: Detected aborted journal
Quoted 9 lines
Remounting filesystem read-only
end_request: I/O error, dev mmcblk0, sector 4448
journal commit I/O error
===========================================
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To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected]
More majordomo info at ?http://vger.kernel.org/majordomo-info.html
Quoted 12 lines
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--
Regards,
Hardik
"If you are doing what you have always been doing then expect what you have always been getting."
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected]
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Signature · 5 lines

Regards,
Hardik

"If you are doing what you have always been doing then expect what you
have always been getting."